The liaison committees in each of the cities gathered all the JW healthcare professionals in their areas and read a letter stating that they can no longer administer, order, or even recommend a blood transfusion in any form, even if it means termination from their job.
The question is why would the Org use this type of dissemination method when they are so "in your face" on everything else? Why is everything private or semi-private (no pun intended) verbal communication issued regionally with no written record available?
This is probably the most blatant legal CYA I have yet to see from WT Legal. They know that all it takes is one JW to get fired from their job over taking a stand on this. Once that happens, this letter would be immediately submitted into evidence in court / arbitration.
This is the same reason why any accusation of CSA requires the elders CALL the branch (vs. a letter) -- it assures no paper trail where the Branch can be seen as directing decision-making.
BTW, I can confirm I've had conversations with multiple JW medical professionals where I point-blank asked them if they'd been told that providing blood products is now forbidden. Each of them confirmed this was the case, but when they were told (verbally), it took quite a bit a verification as other elders they'd asked had no idea this was out there. One chose to leave their long-standing job in one of the country's top trauma wards over this, and now works at a neighborhood clinic taking blood pressure, giving flu shots, etc.
EDIT: If I were a JW nurse / doctor and were read this letter, my response would be: "Thanks for the information brother, however this directly contradicts what has been published by the Faithful Slave in the Watchtower (cite the WT reference from Blondie). If it is serious enough to result in my being disfellowshipped, or losing my job, I will need to receive this direction and clarification in writing. I'm sure the Branch and Faithful Slave appreciate the seriousness of this matter."